Overhead door system with concealed hydraulic cylinder
AssigneePowerLift Door Consultants, Inc.
InventorRichard Ernest Peterson
Life of this patent
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Abstract
An overhead door system including a frame, a door leaf and a first hydraulic cylinder. The door leaf is pivotally mounted to the frame. The first hydraulic cylinder has a first cylinder end and a second cylinder end. The first cylinder end is operably attached to the frame. The second cylinder end is operably attached to the door leaf. The first hydraulic cylinder is capable of moving the door leaf between a closed configuration and an open configuration. At least one of the frame and the upper door panel has a slot formed therein. When the door leaf is in the closed configuration, the first hydraulic cylinder is substantially recessed in the slot.
Claims7
An overhead door system comprising:
- a frame having a first slot formed therein;
- at least one hinge;
- a door leaf having substantially planar front and back surfaces and further having a second slot formed between said front and back surfaces, wherein the door leaf is pivotally mounted to the frame with the at least one hinge so that the door leaf is vertically pivotable with respect to the frame;
- and
- a first hydraulic cylinder comprising a first cylinder end and a second cylinder end, wherein the first cylinder end is operably attached to the frame, wherein the second cylinder end is operably attached to the door leaf, wherein the first hydraulic cylinder is capable of moving the door leaf between a closed configuration and an open configuration and wherein when the door leaf is in the closed configuration, the first hydraulic cylinder is substantially recessed in the first slot and the second slot.
Dependencies are inferred from the claim text.